A race director is preparing for an upcoming marathon and estimates that the mean time to finish is 312 minutes. Assume that the times are normally distributed, with a standard deviation of 70...

A race director is preparing for an upcoming marathon and estimates that the mean time to finish is 312 minutes. Assume that the times are normally distributed, with a standard deviation of 70 minutes. Find the percentage of times that are longer than 214 minutes. For your intermediate computations, use four or more decimal place. Give your final answer to two decimal places.